Finding the Fourth Proportional to 326,912.12, 450,095.82 and 278,973.08
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Solution
The fourth proportional to 326,912.12, 450,095.82 and 278,973.08 is: 384,092.88
Step by Step Solution
- Step 1: Write the proportion equation
326,912.12 : 450,095.82 = 278,973.08 : x - Step 2: Convert to fraction form
326,912.12/450,095.82 = 278,973.08/x - Step 3: Cross multiply
326,912.12x = 450,095.82 × 278,973.08 - Step 4: Simplify right side
326,912.12x = 125,564,617,200.53 - Step 5: Solve for x
x = 125,564,617,200.53/326,912.12 - Step 6: Final answer
x = 384,092.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.